Examples not compiling due to dependency on XmlPatterns

Examples not compiling:

/Examples/Qt-6.0.0/demos/rssnews, gcc_64
/Examples/Qt-6.0.0/demos/photoviewer, gcc_64
/Examples/Qt-6.0.0/widgets/painting/pathstroke
/Examples/Qt-6.0.0/widgets/painting/affine
/Examples/Qt-6.0.0/widgets/painting/deform
/Examples/Qt-6.0.0/widgets/painting/gradients
/Examples/Qt-6.0.0/widgets/painting/composition

(Edit: removing /Examples/Qt-6.0.0/quick3d/studio, example seems to be removed from content)

All have similar build error:

– Configuring done
CMake Error at /home/qt/RTA/qt5/6.0.0/gcc_64/lib/cmake/Qt6Core/Qt6CoreMacros.cmake:440 (add_executable):
Target "photoviewer" links to target "Qt::XmlPatterns" but the target was
not found. Perhaps a find_package() call is missing for an IMPORTED
target, or an ALIAS target is missing?
Call Stack (most recent call first):
CMakeLists.txt:24 (add_qt_gui_executable)
– Generating done
CMake Generate step failed. Build files cannot be regenerated correctly.